system

Nota:

• An assembly of components that are connected together in an organized way

1. Software System
   1. Software
      1. Malleability:
         1. Easy to change
         2. Changes introduce errors
      2. Size
         1. large programs might have more errors
      3. Complexity
         1. Complex programs arent easy to undestand and modify. They might have more error based on the complexity
   2. Useful
   3. usable
   4. flexible
   5. reliable
   6. available
   7. affordable
   8. Legacy system
      1. old
      2. large
      3. developed using outdate techniques
      4. Implemented with old programming languages
      5. critical to business
      6. changed a number of times since their inception
      7. Difficult to understand because of either a lack of domumentation about their internal structure or a lack of experience within the group responsible for them
      8. Difficult to maintain
   9. Sociotechnical system
      1. People
      2. Organisations
      3. Other technical components
   10. Architecture
       1. Layers
          1. Presentation
          2. Application domain
          3. Infrastructure (OS DB, etct)
       2. components
       3. Services
2. Viepoint

   Nota:

   • A viepoint correspond to a different sets of users and therefore different purposes. Subjective oredering of reality
3. System boundary

   Nota:

   • Conceptual line that divides the system and what it escludes