Compare custom-written and off-the-shelf software
2 Hardware and software
Objective: Compare custom‑written and off‑the‑shelf software
Think of software like a pizza. 🍕
Custom‑written software is like ordering a pizza with your own toppings – you choose the crust, sauce, cheese, and every extra ingredient.
Off‑the‑shelf software is like buying a ready‑made pizza from a store – it comes with a standard set of toppings that everyone can enjoy.
Key Comparison Points
| Feature | Custom‑Written | Off‑the‑Shelf |
|---|---|---|
| Cost | Higher upfront, but cheaper over time if needs change. | Lower initial cost, but can rise with licences and updates. |
| Time to Deploy | Longer – design, code, test. | Quick – ready to use. |
| Flexibility | Very high – tailored to exact needs. | Limited – only what the vendor offers. |
| Support & Updates | Depends on your team; you own the code. | Vendor handles updates, patches, and help desk. |
| Risk | Higher if you lack expertise. | Lower – proven product, but vendor lock‑in. |
| Examples | Custom CRM for a small business, bespoke game engine. | Microsoft Office, Adobe Photoshop, Salesforce. |
When to Choose Which?
-
Custom‑written is best when:
- Business processes are unique.
- Long‑term cost savings are crucial.
- You have in‑house developers or can hire them.
-
Off‑the‑shelf is ideal when:
- Speed to market is critical.
- Budget is limited.
- The vendor’s product already covers most needs.
Exam Tips 📚
Remember: Use the SWOT framework (Strengths, Weaknesses, Opportunities, Threats) to analyse both options.
Show examples: Cite real software (e.g., Custom‑written – a bespoke inventory system; Off‑the‑shelf – Microsoft Outlook).
Use diagrams: A simple Venn diagram can illustrate overlap and unique features.
Answer structure: Start with a definition, compare using a table, discuss pros/cons, and conclude with recommendation based on context.
Revision
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