{"id":537,"date":"2019-08-13T23:10:17","date_gmt":"2019-08-13T21:10:17","guid":{"rendered":"http:\/\/p4dev.hardscrum.com\/?p=537"},"modified":"2023-10-01T21:06:59","modified_gmt":"2023-10-01T19:06:59","slug":"systemreq","status":"publish","type":"post","link":"https:\/\/p4dev.hardscrum.com\/en\/systemreq\/","title":{"rendered":"System Requirements & Functions"},"content":{"rendered":"

Systems are described at the top level by <\/span><\/span>System Requirements and Functions<\/span><\/span><\/strong> (features). <\/span>Requirements only describe abilities or properties in the “problem area”, so they are still independent of concrete system solutions. <\/span>The solution space is already <\/span>limited <\/span>by the <\/span><\/span>Quality Attributes & <\/span><\/span><\/strong> Constraints<\/span><\/span><\/strong><\/a> .<\/span><\/span><\/p>\n

Interfaces to neighboring systems in the environment and their properties are also specified here. <\/span>For this a sogn. <\/span><\/span>Context diagram<\/span><\/span><\/a> created and used.<\/span><\/span><\/p>\n

Functional System Requirements of the stakeholders are often written in the form of <\/span><\/span>User Stories<\/span><\/span><\/a> * and later <\/span>specified <\/span>using <\/span>“<\/span><\/span>Use Cases<\/span><\/span><\/a>“. Alternatively Behavior Driven Development<\/a> can be used to specify and test the system’s behavior.<\/span><\/span><\/p>\n

*) P4 introduces the term \u201cStakeholder Stories\u201d in this context, since they are suitable for the specification of requirements of <\/span><\/span>all<\/span><\/span><\/span> stakeholders, not just the user.<\/span><\/span><\/p>\n

**) Non-functional requirements (NFRs) are are called Quality Attributes and are not written directly into the System Backlog in P4 (see <\/span><\/span>Quality Attributes & Constraints<\/span><\/span><\/a> )<\/span><\/span><\/p>\n

 <\/p>\n

\n

Further suitable links:<\/p>\n

System Requirements on Wikipedia<\/a><\/p>\n\n\n\n\n
Events<\/td>\nRoles<\/td>\nGroups<\/td>\nArtifacts<\/td>\n<\/tr>\n
Cluster Planning<\/a><\/p>\n

Cluster Sync<\/a><\/p>\n

Cluster Backlog Refinement<\/a><\/p>\n

Cluster Review<\/a><\/td>\n

.<\/span><\/p>\n

Cluster Product Owner<\/a><\/p>\n

Cluster System Engineer<\/a><\/p>\n

.<\/span><\/p>\n

Portfolio Owner<\/a><\/p>\n

Portfolio Architect<\/a><\/td>\n

Team Product Owner Group<\/a><\/p>\n

Team System Engineer Group<\/a><\/p>\n

.<\/span><\/p>\n

Cluster Product Owner Group<\/a><\/p>\n

Cluster System Engineer Group<\/a><\/td>\n

Inspectable Results<\/a><\/p>\n

Team DoD<\/a><\/p>\n

.<\/span><\/p>\n

Usable Knowledge<\/a> & System Increment<\/a><\/p>\n

Cluster DoD<\/a><\/p>\n

.<\/span><\/p>\n

Systems & Applications<\/a><\/p>\n

System Platforms & Variants<\/a><\/p>\n

Organisation DoD<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00a0<\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"Systems are described at the top level by System Requirements and Functions (features). Requirements only describe abilities or properties in the “problem area”, so they are still independent of concrete system solutions. The solution space is already limited by the Quality Attributes & Constraints . Interfaces to neighboring systems in the environment and their properties…","protected":false},"author":3,"featured_media":2353,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[20,22,32],"tags":[503,382],"translation":{"provider":"WPGlobus","version":"2.10.10","language":"en","enabled_languages":["de","en"],"languages":{"de":{"title":true,"content":true,"excerpt":false},"en":{"title":true,"content":true,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/p4dev.hardscrum.com\/en\/wp-json\/wp\/v2\/posts\/537"}],"collection":[{"href":"https:\/\/p4dev.hardscrum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/p4dev.hardscrum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/p4dev.hardscrum.com\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/p4dev.hardscrum.com\/en\/wp-json\/wp\/v2\/comments?post=537"}],"version-history":[{"count":24,"href":"https:\/\/p4dev.hardscrum.com\/en\/wp-json\/wp\/v2\/posts\/537\/revisions"}],"predecessor-version":[{"id":585,"href":"https:\/\/p4dev.hardscrum.com\/en\/wp-json\/wp\/v2\/posts\/537\/revisions\/585"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/p4dev.hardscrum.com\/en\/wp-json\/wp\/v2\/media\/2353"}],"wp:attachment":[{"href":"https:\/\/p4dev.hardscrum.com\/en\/wp-json\/wp\/v2\/media?parent=537"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/p4dev.hardscrum.com\/en\/wp-json\/wp\/v2\/categories?post=537"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/p4dev.hardscrum.com\/en\/wp-json\/wp\/v2\/tags?post=537"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}