: Public Note
Created: 10.01.2018 13:20:32
Modified: 10.01.2018 13:20:40
Project:
Advanced:
<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/>