The document outlines key aspects of PLC components, focusing on reviews, expert opinions, software testing and maintenance, and quality assurance for subcontractors. It discusses the importance of design reviews and various testing methodologies to ensure product quality, as well as necessary maintenance strategies. Additionally, it highlights the integration of external expertise and the implications of subcontracting in larger projects.

1. PLC Components
Kaustubh Joshi

2. Agenda
1. Reviews
2. Experts Opinions
3. Software Testing
4. Software Maintenance
5. Assuring subcontractors quality
6. Example
7. Questions
PLC Components

3. Reviews
Attribute Formal Design Review Peer Review
Members involved Ranks higher than the project
leader.
Ex. Department manager, chief
software engineer, heads of
departments etc
And customers as in contractual
arrangements
Anyone inside or outside
org
Driving force Organization growth Volunteered interest
Notes Process: Approval meetings
Outcomes: “action items” list
Results:
• Immediate approval
• Approval
• additional DR is required
Process: walkthroughs is to
detect as many design and
programming faults as
possible.
Outcomes: Differently
attributed review
Results: Multiple reviews
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4. Experts Opinions
• Bringing external capabilities into the
organization’s in-house development process.
• Insufficient in-house
• Small organizations problems
– In house stress
– Unavailability
– Disputes
PLC Components

5. Software Testing
• Regression testing to get the product to
specific benchmark
PLC Components

6. Software Maintenance
• Corrective maintenance
• Adaptive maintenance
• Functionality improvement maintenance
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7. Assuring subcontractors quality
• Larger the project more external org involved
• subcontracting a part of process / outsourcing
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8. Example for discussion
Attribute Example
Reviews Mircomax Canvas 4
FDR : New release to Canvas 4
Peer : Blogs reviewing Canvas 4
Experts Opinions Flipkart
Software Testing ISO standards ( six sigma)
Software Maintenance Microsoft Windows / Linux
Assuring subcontractors quality Ubislate Akaash
PLC Components

9. Questions ?
Reference :
SQA From theory to Implementation by Daneil Galin (Pg. 61-65)
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10. SQA components employed in the
quality assurance
Pre-maintenance components
• Maintenance contract review
• Maintenance plan.
Software development life cycle components
These components are applied for functionality improvement and adaptive maintenance tasks, activities
whose characteristics are similar to those of the software development process.
Infrastructure SQA components
• Maintenance procedures and instructions
• Supporting quality devices
• Maintenance staff training, retraining, and certification
• Maintenance preventive and corrective actions
• Configuration management
• Control of maintenance documentation and quality records.
Managerial control SQA components
• Maintenance service control
• Maintenance quality metrics
• Maintenance quality costs.
PLC Components