# LASR - Lightweight Approach for Software Reviews > LASR is a structured method for efficient software reviews. It is is community-driven, easy to pick up and delivers quick first results. - [LASR Quality Model](https://www.lasr-reviews.org/quality-model/): LASR defines 14 quality attributes and 3 primary stakeholder perspectives. The 9 standard attributes of ISO 25010 are included with minor modification. - [How to Start with LASR](https://www.lasr-reviews.org/how-to-start/): Interested in using LASR to evaluate your software? Here, you’ll find useful starting points to kick off your journey. - [Why LASR? What’s It All About?](https://www.lasr-reviews.org/why-lasr/): Architecture evaluations help identify weaknesses and potentials in software solutions, validate decisions, and assess improvements. - [A Book on LASR: Reviewing Software Systems](https://www.lasr-reviews.org/book/): This book introduces LASR – the Lightweight Approach for Software Reviews in a practical and in-depth way. - [Downloads for LASR](https://www.lasr-reviews.org/download/): This page offers resources on LASR, including process diagrams outlining the steps of LASR and LASR+, ready for download. - [Frequently Asked Questions](https://www.lasr-reviews.org/faq/): Here you will find answers to frequently asked questions about LASR. - [LASR Cheat Sheet (Quick Overview)](https://www.lasr-reviews.org/cheat-sheet/): The LASR Cheat Sheet condenses the essentials of LASR into four colorful pages for a quick and easy overview. You can download the cheat sheet here. - [LASR Community for Insights and Networking](https://www.lasr-reviews.org/community/): We’ve established an open community for sharing experiences and fostering exchange. Join the LASR Community for up-to-date material. - [Optional Deep Dive with LASR+](https://www.lasr-reviews.org/lasr-plus/): LASR+ provides maturity and depth to the review result if needed. Includes code level checks and an organizational perspective. - [Overview of the LASR Review Steps](https://www.lasr-reviews.org/steps/): An overview of all four LASR Review steps, featuring a process diagram and links to step details. - [Reports](https://www.lasr-reviews.org/reports/): - [Case Studies](https://www.lasr-reviews.org/case-studies/): Experience reports from the community on the use of LASR. - [Feedback, Ideas, or Questions?](https://www.lasr-reviews.org/contact/): Feedback, ideas, or questions? We’d love to hear from you! Reach out anytime. - [LASR Authors: The makers of the method.](https://www.lasr-reviews.org/authors/): Stefan Toth and Stefan Zörner are the authors of LASR. - [License and Copyright](https://www.lasr-reviews.org/license/): License and Copyright. Regulations for the LASR approach, images and the LASR card set. - [Privacy Policy](https://www.lasr-reviews.org/privacy-policy/): Privacy Policy for lasr-reviews.org -- The ways we gather, use, disclose, and manage your data. - [Site Notice](https://www.lasr-reviews.org/site-notice/): Mandatory information for lasr-reviews.org -- Responsible for editorial, liability for contents etc. ## LASR Quality Model > LASR defines 14 quality attributes and 3 primary stakeholder perspectives. The 9 standard attributes of ISO 25010 are included with minor modification. - [Quality Attribute: Functional Suitability](https://www.lasr-reviews.org/quality-model/01/): Are calculated results precise enough, are measurements exact, is the functionality appropriate? - [Quality Attribute: Performance Efficiency](https://www.lasr-reviews.org/quality-model/02/): Does the software perform within given time and throughput parameters? Does it make efficient use of resources? - [Quality Attribute: Scalability](https://www.lasr-reviews.org/quality-model/03/): Can the software react appropriately to growing or shrinking workloads? Can it adapt its capacity to handle variability? - [Quality Attribute: Sustainability](https://www.lasr-reviews.org/quality-model/04/): Is the development and operation of the software environmental friendly? Is resource consumption efficient? - [Quality Attribute: Cost Efficiency](https://www.lasr-reviews.org/quality-model/05/): Is the operation of the system economically optimized? Is it easy to budget for roll-out, change or scaling? - [Quality Attribute: Operability](https://www.lasr-reviews.org/quality-model/06/): Is the software easily operated and supported? Are production problems easy to find and fix? - [Quality Attribute: Auditability](https://www.lasr-reviews.org/quality-model/07/): Is it easy to review or assess the software from a legal, financial or security perspective? - [Quality Attribute: Usability](https://www.lasr-reviews.org/quality-model/08/): Is it intuitive to use the software? Is it recognizable, easy to learn, attractive? Is it hard to run into problems as a user? - [Quality Attribute: Compatibility](https://www.lasr-reviews.org/quality-model/09/): Is the software compliant with standards? is it easy to exchange information or share environments with other systems? - [Quality Attribute: Portability](https://www.lasr-reviews.org/quality-model/10/): Is the software easily transferred to different HW/SW environments? Is it easily adapted for different contexts? - [Quality Attribute: Safety](https://www.lasr-reviews.org/quality-model/11/): Are people, animals, property or the environment protected from damage by the system? - [Quality Attribute: Security](https://www.lasr-reviews.org/quality-model/12/): Is the system secured against attacks? Are data and functionality protected against unauthorized access? - [Quality Attribute: Maintainability](https://www.lasr-reviews.org/quality-model/13/): Is the software easily modified and extended? Is it well tested and understood? Are parts of it reusable? - [Quality Attribute: Reliability](https://www.lasr-reviews.org/quality-model/14/): Is the system available, fault tolerant, and quickly restored after crashes or outages? ## Overview of the LASR Review Steps > An overview of all four LASR Review steps, featuring a process diagram and links to step details. - [LASR, Step 1: Lean Mission Statement](https://www.lasr-reviews.org/steps/step-1/): The first step of the review distills the product’s vision into a lean mission statement. - [LASR, Step 2: Evaluation Criteria](https://www.lasr-reviews.org/steps/step-2/): Identify the top quality attributes of the system. - [LASR, Step 3: Risked-based Review](https://www.lasr-reviews.org/steps/step-3/): Identify the most significant risks. - [LASR, Step 4: Quality-focused Analysis](https://www.lasr-reviews.org/steps/step-4/): Analyze controversial gaps (or their absence) ## Reports - [LASR Survey 2025](https://www.lasr-reviews.org/reports/survey-2025/): Insights from Questionnaires and Interviews in the LASR Community. ## Case Studies > Experience reports from the community on the use of LASR. - [Case Study: DB Systel](https://www.lasr-reviews.org/case-studies/logistics-01/): Alina Stürck shares how her team at DB Systel uses the LASR approach to enhance software quality and team communication in the system for DB Cargo's European freight operations.