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< cell.configure(viewModel: item) return cell case let item as ImageMessage: let cell = tableView.dequeueReusableCell(withIdentifier: "ImageMessageCell", for: indexPath) as! ViewModelType == ViewModelType { var reuseIdentifier: String { return CellType.reuseIdentifier var preferredHeight: CGFloat { return CellType.preferredHeight init(tableView: UITableView) { register(into: tableView) func register(into tableView: UITableView) { switch CellType.registerMethod { case .nib(let nib): tableView.register(nib, forCellReuseIdentifier: CellType.reuseIdentifier) case .classReference(let cellClass): > UITableViewCell { let currentItem = itemsArray[indexPath.row] let currentAdapter = tableAdapter[currentItem] let cell = tableView.dequeueReusableCell(withIdentifier: currentAdapter.reuseIdentifier, for: indexPath) currentAdapter.configure(cell: cell, with: currentItem) return cell We are no longer configuring cell view classes directly using pattern matching but instead using adapter interfaces that will receive the models and the recycled cell views. If we need to display another type of message in this chat application, let’s say a video message, we only need to create the cell view with it’s configure method, define the model and add it to the adapter map.

As I am working for a web agency that has been dealing with advanced web development for years, I have listed basic Web Design Principles that should be taken into account before the files are sent to programmers for coding. Whether you keep it in the design file itself or in a separate brief, a complete style guide for the web design for coding makes the coding process much easier. Tip: if you use a grid, like the CSS Grid or Bootstrap, make sure your design meets the grid’s requirements. Keeping in mind that you’re making web design for coding, think of what parts of the image should be isolated to make the website work better (e.g. background and title, patterns and icons).

2019 has become a remarkable year for Apiumhub; new office, Apium Academy, Open Source Projects, software architecture meetups, cool innovative projects and… we can’t wait to share with you guys that the Apiumhub team is organizing the Global Software Architecture Summit (GSAS) 10th of October in Barcelona. He is the author of numerous technical books and videos from O’Reilly, including several books on Microservices, the Software Architecture Fundamentals video series, Enterprise Messaging video series, Java Message Service, 2nd Edition, and a contributing author to 97 Things He’s also been a program committee member for the Working International Conference on Software Architecture (WICSA), the International Conference on Software Maintenance (ICSM), and the European Conference on Software Architecture (ECSA). If you are interested in meeting software architecture influencers from all over the world, this is a great opportunity to participate in a Global Software Architecture Summit and to support the software architecture community.

The US are formed by the following parts:The title of a US follows a very definite formula:The user history defines a functionality, since in a sentence it must make clear WHO (role) performs an ACTION (objective) to satisfy a NEED (motivation).AS a user I WANT to be able to search for transactions TO be able to see unnecessary expenses in my account in a periodAS a user I WANT to access the nursing agenda in a secure way TO use its functionalitiesThe title of a user story must map a functionality of our product or softwareWhen we are writing user stories, it is a good practice to also use characters instead of roles, since they give even more context, for example:AS a user I WANT to be able to show the list of visits TO be able to manage the arrival of patients, and management of waiting roomsAS a nurse I WANT to be able to show the list of visits TO be able to manage the arrival of patients, and management of waiting roomsWith the simple change of user by nurse we are giving much more context to our user history, and we make it much more readable for any type of non-technical personnel. The acceptance criteria are fundamental, since:Help the developer to correctly implement the taskIn TDD the acceptance criteria must directly map to functional testsFollowing a strict TDD, the implementation should start with themThey help the QA staff to give the OK to consider the user story finishedThe acceptance criteria must define, together with the title, the functionality to be implementedThe QA staff, ideally, should validate that all of them are met to give the OK to go up to production. They must be written so that they are quickly verifiable by the clientCOMPLETE: The set of acceptance criteria should include all functionality requirementsAs an example:AS a user I WANT to access the nursing agenda in a secure way TO use its functionalitiesThe username MUST have value, otherwise a relevant error message will be displayedThe username MUST be in the form of an email, otherwise a pertinent error message will be displayedThe password MUST have value, otherwise a pertinent error message will be displayedThe user name MUST exist in the database, otherwise a pertinent error message will be displayedThe password MUST match the one associated with the user name in the database, otherwise a pertinent error message will be displayedIf