ISO IEC TR 24774 pdf download – Systems and software engineering — Life cycle management — Guidelines for process description

ISO IEC TR 24774 pdf download – Systems and software engineering — Life cycle management — Guidelines for process description
1 Scope
This Technical Report provides guidelines for the description of processes by identifying descriptive elementsand rules for their formulation. It characterizes the following elements of process description:
—Purpose;
Outcomes;Activities;Tasks;
lnformation items.
In addition process views are described.
lt does not describe how processes are composed or otherwise aggregated into larger frameworks orarchitectures.
2Terms and definitions
For the purposes of this document, the following terms and definitions apply.2.1
activity
set of cohesive tasks of a process[ISO/IEC 15288:2008]
2.2
information item
separately identifiable body of information that is produced and stored for human use during a system orsoftware life cycle
[ISO/EC 15289:2006]2.3
life cycle
evolution of a system，product,service,project or other human-made entity from conception throughretirement
[ISOnEC 15288;2008]
2.4
life cycle model
framework of processes and activities concerned with the life cycle that may be organized into stages, whichalso acts as a common reference for communication and understanding
[ISO/IEC 15288;2008]
2.5
process
set of interrelated or interacting activities which transforms inputs into outputs[IsO 9000:2005]
2.6
process purpose
high level objective of performing the process and the likely outcomes of effective implementation of theprocess
NOTE The implementation of the process should provide tangible benefits to the stakeholders.[lSO/IEC 12207:2008]
2.7
process outcome
observable result of the successful achievement of the process purpose[ISO/IEC 12207:2008]
2.8
product
result of a process[so 9000:2005]
2.9
system
combination of interacting elements organized to achieve one or more stated purposes[lSO/IEC15288:2008]
2.10
task
requirement, recommendation, or permissible action, intended to contribute to the achievement of one or moreoutcomes of a process
[SO/IEC 15288:2008]
2.11
view
representation of a whole system from the perspective of a related set of concerns[lSOIEC 42010:2007,IEEE Std 1471-2000]
NOTE ln standards being developed in lSO/IEC JTC 1/SC 7, the “system” (system of processes) referenced in thedefinition is the collection of system and software life cycle processes provided by lSOIEC 15288 and ISO/EC 12207.
2.12
viewpoint
specification of the conventions for constructing and using a view[ISO/IEC 42010:2007,IEEE Std 1471-2000]
NOTE1 A viewpoint is a pattern or template from which to develop individual views by establishing the purposes andaudiences for a view, and the techniques for its creation and analysis.
NOTE 2 For a detailed explanation of view and viewpoint and how they can be defined and used, see ISOIEC 42010.Recommended practice for architectural description of software-intensive systems.
3Characterizing the elements
3.1Introduction
To enable uniform description additional characterization of the elements is helpful. The remainder of thisTechnical Report provides that characterization.
This Technical Report describes the following process elements:
-The title is a descriptive heading for a process;
– The purpose describes the goal of performing the process;
– The outcomes express the observable results expected from the successful performance of the process;
The activities are a list of actions that may be used to achieve the outcomes.Each activity may be furtherelaborated as a grouping of related lower level actions;
The tasks are specific actions that may be performed to achieve an activity. Multiple related tasks areoften grouped within an activity;
– The information items are separately identifiable bodies of information produced and stored for human
use during a system or software life cycle.
To prevent confusion and to encourage consistency the use of alternative terms for these elements is stronglydiscouraged.
Figure 1 is a UML representation, adapted from Figure C.1 of lSO/IEC 15288:2008,depicting the relationshipsamong the elements of a process as discussed in this lInternational Technical Report.
NOTEAprocess view has the same component entities.
Annex A presents an example of a process described using the guidelines in this Technical Report.