Merge pull request nus-cs2103-AY2021S1#107 from gabztcr/gabriel-developer-guide-implementation

Add Overall Completion Percentage feature to DG Implementation

Author: gabztcr

docs/DeveloperGuide.md

@@ -261,6 +261,39 @@ The following sequence diagram shows how the view operation works:
   * Pros: Does not require an additional operation to fetch the item in view.
   * Cons: Inappropriate use of Command Result whose primary objective is to pass feedback to the user.
 
+### \[Proposed\] Overall Completion Percentage feature
+
+#### Proposed Implementation
+
+The Overall Completion Percentage (OCP) feature is to be implemented in the Dashboard page (coming soon) of *Productiv*.
+This feature allows users to have a quick overview of the progress of their product's development. OCP is given by the 
+formula*:
+
+<div markdown="span" class="alert alert-primary">:bulb: **Tip:**
+*OCP (%) = Number of Completed Deliverables / Total Number of Deliverables × 100*
+</div>
+
+\* If no deliverables are present, OCP will be set to **0%**.
+
+The OCP will only be updated upon successful execution of the following (simplified) commands:
+* AddCommand, i.e. *add(deliverable)*
+* DoneCommand, i.e. *done(deliverable)*
+* DeleteCommand, i.e. *delete(deliverable)*
+
+The following proposed sequence diagram shows how the updating of the OCP would be implemented:
+
+![OCPSequenceDiagram](images/OCPSequenceDiagram.png)
+
+#### Design consideration:
+
+##### Aspect: How updating of OCP executes
+
+* **Alternative 1 (current choice):** Store the deliverable counters within `LogicDeliverableManager`.
+    * Pros: Adheres to Single Responsibility Principle.
+    * Cons: May require additional interfaces/methods to retrieve the required values for OCP computation.
+* **Alternative 2:** Store the deliverable counters as global variables.
+    * Pros: Directly accesses the required values for OCP computation.
+    * Cons: May violate Single Responsibility Principle.
 
 
 --------------------------------------------------------------------------------------------------------------------

docs/UserGuide.md

@@ -20,7 +20,7 @@ traditional GUI apps.
 
 1. Ensure you have Java `11` or above installed in your computer.
 
-1. Download the latest `Productiv.jar`. [Coming Soon]
+1. Download the latest `Productiv.jar` from [here](https://github.com/AY2021S1-CS2103T-F11-2/tp/releases).
 
 1. Copy the `.jar` file to your preferred folder.
 

docs/diagrams/OCPSequenceDiagram.puml

@@ -0,0 +1,67 @@
+@startuml
+!include style.puml
+
+box Model MODEL_COLOR_T1
+participant ":DeliverableModel" as Mod MODEL_COLOR
+end box
+
+box Logic LOGIC_COLOR_T1
+participant ":TotalNumDeliverables" as Total LOGIC_COLOR
+participant ":NumCompletedDeliverables" as Com LOGIC_COLOR
+participant ":OCP" as OCP LOGIC_COLOR
+end box
+
+[-> Mod: add(deliverable)
+activate Mod
+Mod -> Total : add(1)
+activate Total
+Total -> OCP : update()
+activate OCP
+OCP --> Total
+deactivate OCP
+Total --> Mod
+deactivate Total
+[<-- Mod
+deactivate Mod
+
+[-> Mod: done(deliverable)
+activate Mod
+Mod -> Com : add(1)
+activate Com
+Com -> ":OCP" as OCP: update()
+activate OCP
+OCP --> Com
+deactivate OCP
+Com --> Mod
+deactivate Com
+[<-- Mod
+deactivate Mod
+
+[-> Mod: delete(deliverable)
+activate Mod
+
+opt isCompleted(deliverable)
+
+Mod -> Com : sub(1)
+activate Com
+Com -> ":OCP" as OCP: update()
+activate OCP
+OCP --> Com
+deactivate OCP
+Com --> Mod
+deactivate Com
+
+end
+
+Mod -> Total : sub(1)
+activate Total
+Total -> ":OCP" as OCP: update()
+activate OCP
+OCP --> Total
+deactivate OCP
+Total --> Mod
+deactivate Total
+
+[<-- Mod
+deactivate Mod
+@enduml