: Public Note
Created: |
10.01.2018 13:20:32 |
Modified: |
10.01.2018 13:20:40 |
|
Project: |
|
Author: |
deniz |
Version: |
1.0 |
Phase: |
1.0 |
Status: |
Proposed |
Complexity: |
Easy |
Difficulty: |
|
Priority: |
|
Multiplicity: |
|
Advanced: |
|
UUID: |
{E82674EE-4CD6-4ad6-8E3D-1C27B00CF948} |
Appears In: |
Context Viewpoint |
<b>Identity and Responsibilities of External Entities</b><br/>The key information that the context view must define is the set of external entities that the current system interacts with in some way,<br/>the reason for the interaction and the responsibilities that the external entities are assumed to fulfil in the context of this relationship. It<br/>is important to make sure that external entities that the system has irregular or occasional interactions with (e.g. systems that are only<br/>polled for data at the end of each month) are defined just as carefully as those which the system interacts with continually. Similarly, it<br/>is important to consider and carefully define external entities that rely on this system as well as those that this system relies on (it is<br/>very easy to worry about what we need while rather neglecting what others are expecting from us!) Also make sure that different types<br/>of external entities are considered, including systems supplying or consuming data, systems called as services, systems that call us as<br/>services, physical entities such as reports and files and human actors who need to interact with this system.<br/>