what is the rationale for scrum teams. Openness about the challenges of performing the work. what is the rationale for scrum teams

 
 Openness about the challenges of performing the workwhat is the rationale for scrum teams  The rationale behind this recommendation is to maintain effective communication, collaboration, and self-organization within the Scrum Team

Sprints are the skeleton of the Scrum framework. What 4 Key Changes To The Scrum Guide Tell Us About Scrum. More. It’s a way to break work into manageable pieces and. However, some frameworks do support multiple teams. The team is comprised of of 5-9 members. Download. What it is: The Agile project management methodology is one of the most common project management processes. Scaled Scrum is any instance of Scrum involving more than one team creating and sustaining. It places value in feedback, self-reflection, and assessment throughout the project duration to maximize potential. ⏰ Timing: The Sprint Planning meeting occurs at the sta rt of the. Now we want to release more often – continuously. Their main goal in a given sprint is to complete as soon as possible useable segments of prioritized work that will have business value. A Brief Introduction to Agile, Scrum & Kanban. During a recent trip to Hyderabad in India we had the pleasure of. But the processes they use to achieve those ends. Focus on creating high-value Increments that meet the Definition of Done. In other words: the aftermath is more costly then the initial build, and some "quick small things" become very costly in the long run. This explains why a design was selected from alternatives and how it achieves design goals. Scrum teams use sprint goals to focus their sprint activities. #1) Coach – The Scrum Master acts as an Agile Coach for both the Development team and the Product Owner. O to maintain a record of each team member's roles and responsibilities. In this article, we will. 2. Each sprint is no longer than one month and commonly lasts two weeks. It’s ideal for managing projects that require fast development and testing, especially amongst a small team. Since the core of Scrum is regular time-boxed delivery, we cannot afford to have flexible sprint lengths. You are free to choose any sprint length as long as it is between 1 to 4 weeks. It emphasizes iterative development and allows for constant feedback from stakeholders in order to ensure that the project is on track. They are grouped into a department based on their expertise. There are five scrum ceremonies, sprint planning, daily standup, sprint review, sprint retrospective and product. Conclusion. 10 Reasons Why Agile Sprint Planning is Important – Kissflow. Scrum - MCQs with answers. Scrum master. Subscribe. d. The Scrum Master: helps the Scrum Team: By coaching the team members in self-management and cross-functionality. org, and this skill provides the foundational knowledge needed to work with Scrum in a highly practical way. A project sprint in Scrum is a short period of time wherein a development team works to complete specific tasks, milestones, or deliverables. Yet in almost every Certified Scrum Master course I teach, I'm asked if teams really need to do a retrospective every sprint. November 18, 2020 A reflection on four key changes in the 2020 Scrum Guide, why they were made, and why. Shorter sprints mean your teams get Sprint Reviews more often, which, is valuable because Sprint Reviews are when customers give you feedback on your product. Iterative Experimentation: The Scrum team or teams should test any significant changes in a smaller scope before implementing them to gauge their effectiveness. In this article, we'll explore five key skills a Scrum team should possess to be great collaborators. This explains why a design was selected from alternatives and how it achieves design goals. Story point estimation is the process of assigning story points to a product backlog item or a user story. The idea behind this comes from a various misconception about Scrum Masters and Agile Coaches work description, different company standards and no clear guidelines. Openness about the challenges of performing the work. How do Sprints and Scrum compare? The key difference between a sprint versus Scrum is that Scrum is an Agile product development framework, while a sprint is a fixed-length development cycle Scrum teams use to incrementally develop a product. The product owner, scrum master and members of the development team are the three roles in a scrum. Join the Mastering Agility Discord community! What if management has something important to share with the Scrum Team that they should improve? Or what if the Scrum Team wants to discuss something with management during the. SAFe aims to improve the efficiency levels of project teams and while also encouraging the entire. Successful agile organizations focus on. The basic Scrum framework is composed of the following elements: Three Agile Scrum team accountabilities: product owner, Scrum master, and the developers. This allows to coordinate and deliver the most important items first. product owner for business, developers for domain, and scrum master for impediments. The purpose of the rugby scrum is for each player on the team to play their role in order to work together and achieve their shared goal. Answer: Explanation: "Sprints make projects more manageable, enabling teams to shop high-quality work faster and more frequently, and provide them more flexibility, allowing them to react to change," says the explanation. These Scrum roles are often different from official job titles, meaning that the development team, for example, can be comprised of testers, designers, programmers, and more. See moreAs regular time-boxed delivery is at the heart of Scrum, we can’t afford to have flexible sprint lengths. Scrum teams are small. SAFe exchanges Scrum’s flexibility for a more rigid structure. 11- Noor´s Scrum Team Had a great Sprint Review of a new feature wih their Product Owner. Highlight your contribution but still remember Scrum is a Team Sport ! – Interviewers definitely will be eager to understand your personal contribution in any of the success stories. Fast and effective. The Daily Scrum is held in the same place and starts and ends at the same. 1. Value Based Prioritization - This principle highlights the focus of Scrum to deliver maximum business value, from early in the project and continuing throughout. Q #8) What are the main responsibilities of a self-organizing development team? a. They do this by clearly communicating product goals and managing the product backlog. Tasks must be allocated to team members by the Product Owner E. More critical, however, is when the Scrum Master decides. The Scrum framework. What 4 Key Changes To The Scrum Guide Tell Us About Scrum. 2. The team members can use this understanding to ensure that the frame of reference remains constant. This term is definitely known to everyone involved in the world of Scrum development. Every part of Scrum has a purpose, a reason to why it's included in the framework, and this update made the purpose - raison d'etre - of the Sprint Planning clearer. Essentially, scrum provides a. Let’s now cover how Scrum teams work and what meetings look like, and then we’ll revisit. The Sprint Review Meeting enables the Scrum Product Owner to review and control the work. In the article,. The Scrum Master teaches all to keep it within the time-box. ). On the other hand, if the team is doing Scrum, but doesn’t have a product manager, then the product owner often ends up taking on some of the product manager’s responsibilities. The Scrum Values are: Courage - Scrum Team members need courage to do the right thing and face tough problems. Once development teams are following a basic scrum practice, it’s time to consider whether and how they can provide estimates on user stories. It contains sets of roles, ceremonies, and considerations for how your work is completed. It means being flexible about the path you take. (we sprint plan and retro together ) , however, there is still a feeling that we are two teams within one. The cross-functional, collaborative nature of Scrum teams is designed for flexibility, creativity, and productivity. ” - Scrum Guide 2020. While it offers continuous development, SAFe sets objectives that vary by team. Once development teams are following a basic scrum practice, it’s time to consider whether and how they can provide estimates on user stories. Scrum is often more efficient for small teams, companies and startups. The scrum master might be the most misunderstood accountability of all time. Work together with other students to organize and simulate a scaled product development project. Here’s an overview of Agile, Scrum, and Kanban: a. The scrum teams benefit from the fixed time sprint since each member settles into the flow. Scrum, recognized today as the most popular agile development methodology, has been used in a wide range of settings and for varying purposes, in- and outside of the traditional software development context. A scrum master is focused on the team itself. The ‘Scaled Professional Scrum’ framework builds on the corner stones of Scrum, i. “The Scrum Master is accountable for the Scrum Team’s effectiveness. The Scrum Guide offers very limited guidance, suggesting 3-9 people per team (exclusive of ScrumMaster and Product Owner), without giving reasons or context for those numbers. show respect to each other. There isn’t one universally correct answer for optimal team size, but there are a number. Sprints separate a project timeline into smaller, more manageable blocks. Roll with the punches. After the features have been tested, we need an integration team to. While the optimal Sprint length can vary depending on the team, the project, and other factors, there are reasons why teams are shunning long Sprints and opting for. A scrum team is a team of collaborators, usually composed of five to nine people, who work together to develop products and complete projects. It’s a way to break work into manageable pieces and make continuous improvements. This openness fosters collaboration, drives innovation, and helps the team adapt swiftly to changing circumstances. The product owner is a staple of most Scrum teams. Fast and effective. You probably know a lot of mission statements without realizing it. The Scrum process is a popular Agile method that allows teams to focus on continuous improvement while building and iterating quickly. It’s about integrating Kanban’s complementary tools to achieve better outcomes with Scrum. Outlining clear priorities for the upcoming sprint. What is scrumban? Scrum and kanban are two very popular agile methodologies. Scrum ceremonies allow teams to communicate transparently. Let us understand the rationale for scrum teams implementing short sprints by discussing some benefits of the same: 1. Within a scrum group or team, there isn't a rank or hierarchy. If team members are hesitant to open up, try easing the tension with small talk. You can gather the current group of employees together for an initial meeting to see if the group meshes well. #1) Coach – The Scrum Master acts as an Agile Coach for both the Development team and the Product Owner. Continuous Delivery in Scrum. That way, if something goes wrong, it at least goes wrong in a small way. Continuous Integration refers to a software development practice requiring developers to integrate code into a central repository at various times. Teams adopt their own cadence and approach to planning. There’s been plenty of discussion over the years comparing and contrasting Scrum and Scaled Agile Framework (SAFe), which has set up a premise that you must choose one or the other. S. Show. For example, the architect for a public school that creates a rationale based on the project's requirements and constraints. Keep reading as we examine what Scrum is, how it works, and how it can benefit every level of your organization. It is a foundational framework upon which a systematic, emergent, managed initiative to scale can grow. Building software and building a house aren't all that different – both are long-term projects where multiple teams need to coordinate with one another, and any homeowner will confirm, the project is never done. Scrum. Everyone must agree to the release plan at this stage before they can move forward to the next release. org, the Home of Scrum, was founded by Scrum co-creator Ken Schwaber as a mission-based organization to help people and teams solve complex problems. The Daily Scrum is a timeboxed meeting during which the Scrum Team coordinates its work and sets a plan for the next 24 hours. Let’s put it this way: Scrum is “a simple but powerful way for people to work together”, says Jeff Sutherland in his Scrum Book (A Scrum Book. As regular time-boxed delivery is at the heart of Scrum, we can’t afford to have flexible sprint lengths. Focus on creating high-value Increments that meet the Definition of Done. The Scrum Values. To address this gap, we performed a 7-year-long mixed-methods investigation composed of two main phases. Hold a meeting before the meeting. The typical size for a Scrum Team is commonly recommended to be around 7 plus or minus 2 individuals. Read More. I begin with an overview of the important roles that estimation and velocity play in agile planning. Kanban is a project management method that helps visualize tasks, while Scrum is a method that provides structure to the team and schedule. Scrum doesn't have a whole lot of guidance for dealing with multiple teams. A scrum master is a member of an agile team that has adopted scrum principles and takes on a leadership role involving the management, advocacy, orchestration, and support of scrum theory, values, events, and artifacts. Representatives gather together to process information. The Scrum team—the product owner, development team, and Scrum master. Here are the top 5 resource planning models for scrum teams: 1. The fundamental scrum team comprises one scrum master, one product owner and a group of developers. 6. Scrum of Scrums. Conclusively, the rationale for scrum teams implementing short sprints, while initially challenging, is that it eventually aids teams in performing better and completing. Scaled Professional Scrum with Nexus™. Because the essence of scrum is empiricism, self-organization, and continuous improvement, the three roles give a minimum definition of responsibilities and. Conclusion. The scrum team members speculate about how much work will be needed to complete the tasks specified by the project plan items. Metrics — Teams use data points to improve efficiency and they are set during the planning phase so that progress can be measured during standup meetings. “By 2022, 90 percent of agile development teams will include remote work as part of business continuity planning, up from nearly 30 percent in 2020. While senior team members volunteer for tasks, juniors must be assigned tasks by the Scrum Master. They give you guidance, and are created to the best of a product manager's knowledge at each given point in time. “By 2022, 90 percent of agile development teams will include remote work as part of business continuity planning, up from nearly 30 percent in 2020. The rationale for scrum teams implements short sprints to get more feedback and limit schedule risk. Have an open mind to identify ways to strengthen collaboration with business people and customers. The Scrum Master champions Scum values while understanding the importance of adapting to change as championed by Agile. In particular, the scrum methodology’s defined set of rituals and roles can help serve as a framework to structure and manage remote teams of all kinds, but especially software. The rationale for Scrum teams implementing short sprints lies mostly in option B. Blog Post | Christiaan Verwijs. Artifacts are handy tools that help you solve a problem. Begin by establishing who will be on the team. The Scrum Master helps those outside the Scrum Team understand which of their interactions with the Scrum Team are helpful and which aren’t. The Scrum Master: helps the Scrum Team: By coaching the team members in self-management and cross-functionality. Whereas Scrum relies on narrow focus and small teams, SAFe is more comprehensive. is a de facto, iterative approach to build and deploy products to enable continuous delivery. Going agile doesn't mean not knowing where you're going. In practice, the following three simple steps represent the work required to achieve high performing offshore development teams: Presented as a hierarchy to highlight that unless the fundamentals are in place, processes and tools are unlikely to be effective. Since Professional Scrum Teams build software that works, stop, create a working increment of software that meets your definition of done (DoD), and then start Sprinting, and review what you mean by “working” continuously, and at. As facilitators, scrum masters act as coaches to the rest of the team, or servant leaders, as the Scrum Guide puts it. The fundamental scrum team comprises one scrum master, one product owner and a group of developers. I'm building a house. A Little History About Us. In today's tutorial you learned what the rationale for Scrum teams is. 1. 05th Sep, 2023 Views Read Time 3 Mins In this article Agilists all over the world often ponder over this million-dollar question. Product Owners employing multiple Scrum Teams should carefully weigh the benefits versus the additional costs incurred. Development team. Read More. 2) Language and. Collaboration is what enables the whole team to be greater than the sum of its parts. It is a lightweight process framework that is used to structure, plan, and control the work of a project team. It is a lightweight process framework that is used to structure, plan, and control the work of a project team. Good scrum masters are committed to the foundational elements of scrum but remain flexible and open to. The Daily Scrum is a timeboxed meeting during which the Scrum Team coordinates its work and sets a plan for the next 24 hours. Data-Backed Rationale: The Scrum teams should use empirical data to justify the change. Identify Your Team’s Capacity. I am certain it would benefit from refinement so if you have any thoughts on this, please leave me a comment. More. Sprint Backlog. and Coplien J. These teams work with Scrum. The effectiveness of Scrum teams is primarily determined by the ability of teams to release frequently, close collaboration with stakeholders, the autonomy of teams, the degree to which teams operate in environments that encourage continuous improvement, and support from management. Within a Scrum Team, there are no sub-teams or hierarchies. The team should typically include: A Scrum Master is a facilitator who supports the team in its self-organization and assists with adhering to the. A typical Scrum team consists of 10 or fewer members, including Developers, Scrum Master and Product Owner. They are well-versed in the nuances of Agile principles and equipped with the skills to implement these effectively. For example, they should exhibit courage to explore the unknown, to change direction, to share information and to engage in courteous disagreements. If you're looking for an Agile framework to help you manage your products and services, Scrum is an excellent place to start. 3. Set sprint goals. (5 min) Briefly introduce the problem the Scrum team will focus on. They might be in different offices, time zones, or even working from their cozy home offices. The Spirit of the Game, by Sutherland J. They allow for frequent releases of functionality while maintaining the core principles of Scrum. Scrum, a widely adopted framework in agile project management, offers a systematic approach to tackling various aspects of product development. Scrum ceremonies, also known as events, are meetings that take place before, during and after sprints within the Scrum framework. Sprint Planning initiates the sprint by laying out the work to be performed for the sprint. The fundamental scrum team comprises one scrum master, one product owner and a group of developers. These ceremonies, or scrum events, are held at key instances in the agile sprint cycle, which we’ll outline below. The three Scrum roles are: Product owner. Agile roadmaps: build, share, use, evolve. If you are considering adopting Scrum in your organization, contact. The Scrum Values are: Courage - Scrum Team members need courage to do the right thing and face tough problems. The Definition of Done is the commitment to quality for the Increment! Create a usable increment that meets your definition of done and then start sprinting. Within a Scrum Team, there are no sub-teams or hierarchies. empowerment is the essence of self-management. During the norming phase, teams start developing an identity. This is a core concept of ‘Agility’, which derives from empiricism. Each sub-team designates an ambassador to participate in a daily meeting with ambassadors from other sub-teams. 2. Help. This helps maintain communication and coordination between sub-teams. Conclusion. Commitment to achieving Scrum Team goals. Self-management can mean much more than a Scrum Team making its own decisions. Focus - The Scrum Team focuses on the work of the Sprint. 6. Many people link scrum sprints with agile software development, to the point where scrum and agile are frequently confused. But here’s the kicker – they aren’t all in one location. This is part #16 of 59 in the series Scrum Guide 2020 Updates. They can explain the (business) value to their Product Owner and customer and hereby ensure its part of the product backlog. Scrum is a framework for complex systems development. 4. This makes sense; the more you work with the same people, the more likely you are to anticipate their needs and yours. Many people link scrum sprints with agile software development, to the point where scrum and agile are. Finally, a person must bring genuine respect for rules and processes, coupled with their understanding of. Collaboration allows a team to work together to complete a Product Backlog item and then move on to deliver the next one. Examine Team's effectiveness. The scrum itself consists of fewer than 9 people. ”. If individuals are working separately, there is. The product owner represents the key stakeholder for the work, such as the user or consumer, and communicates a broad vision or goal to the team. Team members often stand during the meeting to ensure it stays brief. The Daily Scrum is a 15-minute event for the Developers of the Scrum Team. That is, when the framework is used properly. What is the Rationale for Scrum Teams Implementing Short Sprints? Getting a product out in a one or two-week duration may seem impossible at first. Scrum masters are the facilitators of scrum, a lightweight agile framework focusing on time-boxed iterations called sprints. Any larger and communication becomes complex and cumbersome. Keeping team members engaged is important for making sure we have the right amount of workload in. Product teams use roadmaps to outline future product functionality and when new features will be. Increased flexibility: Scrum allows teams to be more flexible and adaptive to change, which is essential in today’s fast-paced world. The foundation for Scrum, the most popular Agile management framework, began with a 1986 Harvard Business Review article written by Hirotaka Takeuchi and Ikujiro Nonaka. The rationale for scrum teams implementing short sprints is to get more feedback and limit schedule risk. bottom-up knowledge creation, self-organization, empiricism. Estimates are a good thing. They give you guidance, and are created to the best of a product manager's knowledge at each given point in time. Sprint review. Scrum teams meet daily to talk about roadblocks that could sidetrack projects. Let's see how!The Scrum master arranged the daily meetings and maintained a record of them to resolve any production problems and coordinated activities between the Scrum team and the rest of the organisation. Get started by following these steps. The Scrum Guide defines “Sprint” in the following way: “They are fixed length events of one month or less to create consistency. From this number, subtract all the “ceremony” time such as sprint. Learn about self. I've gained experience working in both agile and scrum settings. It contains sets of roles, ceremonies, and considerations for how your work is completed. In particular, the scrum methodology’s defined set of rituals and roles can help serve as a framework to structure and manage remote teams of all kinds, but especially software teams. Shorter sprints is that your teams get Sprint Reviews more often and valuable also because Sprint Reviews. The foundation for Scrum, the most popular Agile management framework, began with a 1986 Harvard Business Review article written by Hirotaka Takeuchi and Ikujiro Nonaka. This means that any job title, even your existing ones, can perform one of the roles. Chapter 7: Estimation and Velocity. Though each organization will have its own unique implementation of Scrum, the following sprint characteristics (with a few exceptions) should apply to every sprint. The backlog items are regularly updated according to changes in. Think of Empiricism as working through. Agile teams are required to share all the information and every member works while having the same vision of the final deliverable in mind. The Scrum Master in a way acts as an enabler for proper communication between the Development Team and the Product Owner. By explicitly stating the goal, you create shared understanding within the team of the core purpose. All great collaborations demand true motives, which refers to having the right mindset for collaboration. A seemingly simple technique, estimation in general and story points in particular can feel abstract and. (“1” might be “The Scrum value not practiced at all” and “5” might represent “the Scrum team is perfect at [Scrum value]. Scrum: Scrum is a lightweight framework that helps people, teams and organizations generate value through adaptive solutions for complex problems as defined in the Scrum GuideTM. Collaboration is what enables the whole team to be greater than the sum of its parts. What is the rationale for scrum Get the answers you need, now! manik8358 manik8358 01. It is facilitated by the RTE and event attendees, including Business Owners, Product Management, Agile Teams, System and Solution Architects, the System Team, and other stakeholders. The RTE must schedule all PI planning in advance to be well. Keeping the Scrum team dependent: In this scenario, the Scrum Master pampers the team to a level that keeps the team dependent on his or her services: organizing meetings, purchasing stickies and sharpies, taking notes, updating Jira—you get the idea of this service level. The Scrum approach is very similar to that of the Agile Manifesto, and the latter consists of 12 principles that can help software. As with most other agile workflows, scrum leverages lean concepts — self-managing teams working collectively to consistently deliver value at a. This evaluation could be from a Scrum Master or any other Agile leader. Sprints in Scrum: Chapter 4. The rationale for scrum teams implementing short sprints is to get more feedback and limit schedule risk. Sprint is a certain time-boxed period of a continuous development cycle when a team works to complete a set amount of work. The three scrum roles describe the key responsibilities for those on the scrum team. Agile. User kanban planning can be intermittent or on an as-needed basis. The work to be completed is planned at the Sprint Planning. Nearly every client I work with asks me this question at some point. The rationale for implementing short sprints is to: - Increase transparency: Short sprints make it easier to track progress. The aim of a Sprint is to create a ‘Done’ potentially releasable increment. The Scrum sprint cycle calls for a team to do a retrospective at the end of each sprint. 2. (we sprint plan and retro together ) , however, there is still a feeling that we are two teams within one. But it is worth rotating the role of facilitator to introduce new perspectives. Rather, it is a cohesive unit of goal. For example, employ stakeholder satisfaction surveys post-release to justify modifications in stakeholder. Create an environment where team members feel comfortable expressing their ideas, concerns, and feedback. Scrum is one of the. Roles and Responsibilities. In Scrum, each Sprint may be considered a short project. Scrum refers to a formation in rugby where players huddle closely together with their heads down while trying to gain possession of the ball. Define your first Scrum Team. Scrum teams should be result-driven, lean, and small. The product owner also communicates with other stakeholders beyond the Scrum team. By breaking down the work into smaller timeboxes, the team can receive more immediate feedback on their progress and make adjustments as needed. 4. The goal summarizes what the team wants to accomplish by the end of the sprint. g. For example, employ stakeholder satisfaction surveys post-release to justify modifications in stakeholder engagement practices, ensuring that the developed product aligns well with stakeholder expectations and organizational objectives. It coordinates multiple groups and leaders to deliver products too large or complex for Scrum. Collaboration allows a team to work together to complete a Product Backlog item and then move on to deliver the next one. The daily Scrum is a daily meeting limited to fifteen minutes. Be open to the new and curious about what other teams are doing that could help your team create value. While it offers continuous development, SAFe sets objectives that vary by team. Short sprints provide benefits such as increased efficiency, adaptability in planning, and greater customer involvement. Successful or high-performing. Take a live, interactive Professional Scrum training class. A daily scrum is a brief meeting, usually under 15 minutes, where a team working on a project gathers to discuss the work they have done since the previous meeting. Scrum Teams are enabled to change rather than stick to a plan. Implement with free backlog management tools. There is no hierarchy or rank in a scrum team. The sprint backlog is the part of the product backlog that the team will be working on in their sprint. Now we want to release more often – continuously. The team members should be dedicated and encouraged to improve continuously. 3. And this ultimately creates the conditions for greater organisational agility. The basic Scrum framework is composed of the following elements: Three Agile Scrum team accountabilities: product owner, Scrum master, and the developers. e. The Scrum guide without being prescriptive mentioned 10 or fewer people for the Scrum Team size "The Scrum Team is small enough to remain nimble and large enough to complete significant work within a Sprint, typically 10 or fewer people" - Scrum Guide 2020 However, is the phrase, "10 or fewer" not rather ambiguous? Knowing 1 and. Shorter sprints is that your teams get Sprint Reviews more often and valuable also because Sprint Reviews are when customers give you feedback on the product. Scrum is a prominent project management methodology, notably in the software development sector. Story points are a measurement for understanding the effort it will take to fully implement a product backlog item or user story. A team charter outlines what your team stands for and how they operate. adhere the same norms and rules. The Scrum Master helps those outside the Scrum Team understand which of their interactions with the Scrum Team are helpful and which aren’t. Agile means “incremental, allowing teams to develop projects in small increments. Sprint Planning. Let’s now cover how Scrum teams work and what meetings look like, and then we’ll revisit. Now, Scrum is built around one team of between 4 and 11 people (see my answer here for rationale). (This is a Y1 archetype). The scrum team assesses progress in time-boxed, stand-up. Trust each other. Answer: Explanation: "Sprints make projects more manageable, enabling teams to shop high-quality work faster and more frequently, and provide them more flexibility, allowing them to react to change," says the explanation.