Error Handling Design
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Programmers Questions Tags Users Badges Unanswered Ask Question _ Programmers Stack Exchange is a question and answer site for professional programmers interested in conceptual questions about software development. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top The modern way to perform error handling… up vote 104 down vote favorite 30 I've been pondering this problem for a while now and find myself continually finding caveats and contradictions, so I'm hoping someone can produce a conclusion to the following: Favour exceptions over error codes As far as I'm aware, from working in the industry for four years, reading books and blogs, etc. the current best practice for handling errors is to throw exceptions, rather than returning error codes (not necessarily an error code, but a type representing an error). But - to me this seems to contradict... Coding to interfaces, not implementations We code to interfaces or abstractions to reduce coupling. We don't know, or want to know, the specific type and implementation of an interface. So how can we possibly know what exceptions we should be looking to catch? The implementation could throw 10 different exceptions, or it could throw none. When we catch an exception surely we're making assumptions about the implementation? Unless - the interface has... Exception specifications Some languages allow developers to state that certain methods throw certain exceptions (Java for example, uses the throws keyword.) From the calling code's point of view this seems fine - we know explicitl
Style Color Icons Imagery Typography Writing Layout Principles Units and measurements Metrics & keylines Structure Responsive UI Split screen Components Bottom navigation Bottom sheets Buttons Buttons: Floating Action Button Cards Chips Data tables Dialogs Dividers Expansion panels Grid lists Lists Lists: Controls Menus Pickers Progress & activity Selection controls Sliders Snackbars & toasts Steppers Subheaders Tabs Text fields Toolbars Tooltips Widgets Patterns Confirmation and acknowledgement Data formats Empty states Errors http://programmers.stackexchange.com/questions/147059/the-modern-way-to-perform-error-handling Fingerprint Gestures Launch screens Loading images Navigation Navigation drawer Navigational transitions Notifications Permissions Scrolling techniques Search Selection Settings Swipe to refresh Growth & communications Introduction Onboarding Feature discovery Gesture education Usability Accessibility Bidirectionality Resources Color palettes Devices Layout templates Roboto & Noto fonts Sticker sheets & icons Google © Site https://material.google.com/patterns/errors.html feedback Privacy Terms Errors Errors occur when an app fails to complete an expected action.Some examples of errors include:When user input is not understoodAn app failing to loadIncompatible operations are run concurrentlyTypes of errorsUser input errors App errors Incompatible state errorsSpecific error patternsForms General usage errors Sync errors Connectivity Permissions Contents Usage User input errors App errors Incompatible state errors Usage Expand and collapse content An arrow that points down when collapsed and points up when expanded. Errors occur when an app fails to complete an action, such as:The app does not understand user inputThe system or app failsA user intends to run incompatible operations concurrentlyMinimize errors by designing apps that make it easy for users to input information flexibly. Apps should accept common data formats that use affordances to improve user understanding. To address errors:Clearly communicate what is happeningDescribe how a user can resolve itPreserve as mu
Topic Testing and QA Fundamentals Project Management View All Software Project Teams Outsourcing Software Projects Project Management Process Project Tracking Software Quality Management ALM View All ALM Fundamentals ALM Tools Cloud ALM SLA http://searchsoftwarequality.techtarget.com/definition/error-handling Management Configuration and Change Management Deployment Management Software Maintenance Process Performance Management Software Requirements Management Business and ROI Analysis Version Control Models and Methodologies View All Agile DevOps Agile Extreme Programming (XP) Scrum Software Development Fundamentals TDD and MDD Traditional Models (RUP, V-Model, CMMI, Waterfall) Project Management View All Software Project Teams Outsourcing error handling Software Projects Project Management Process Project Tracking Software Quality Management Testing and QA Fundamentals Requirements View All Building security into the SDLC Software Requirements Use Cases Software Requirements Techniques Software Requirements Tools Security Testing and QA View All Internet Security Penetration Testing Security Testing Software Security Testing Tools Software Testing View All AWS testing error handling design Automated Software Testing Cloud Application Testing Cloud Computing Testing and Development Exploratory Testing Mobile Testing Regression Testing Software Test Design Software Testing Methodologies Testing Tools and Frameworks User Acceptance Testing Software Performance Testing Functional Software Testing Topics Archive View All Application virtualization Software Quality Resources Please select a category ALM Models and Methodologies Project Management Requirements Security Testing and QA Software Testing Section Get Started News Get Started Evaluate Manage Problem Solve Sponsored Communities Home Testing and QA Fundamentals Software development error handling Definition error handling Posted by: Margaret Rouse WhatIs.com Share this item with your network: Sponsored News Top 3 Ways Microservices Benefit Developers –IBM Using Linux and open source for IT innovation –IBM See More Vendor Resources Open Group technical document: The Single Unix Specification –ComputerWeekly.com Extending Application Integration Beyond the Enterprise –IBM Error handling refers to the anticipation, detection, and resolution of programming, application, and communications errors. Specialized programs, called error handlers, are available f
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