In the past few years, many of the major software launches (IPOs) have been related to SaaS. However, there are also many failed cases. Many developers have difficulty figuring out the core nature of the SaaS delivery platform and have not been able to design a reliable, scalable, and secure architecture for SaaS.
This article is based on lessons learned from our development of Clintra's flagship product. This is a cloud-based business management system. It highlights all aspects that SaaS developers need to focus on in order to make a SaaS solution profitable in the long run.
Why should you pay attention?
According to IDC's report "Global Semi-annual Public Cloud Service Expenditure Guide", global public cloud service spending will grow at a compound annual growth rate of 19.4%, increasing from nearly $70 billion in 2015 to 2019. The $141 billion. IDC predicts that SaaS will continue to be the dominant type of cloud computing, accounting for more than two-thirds of all public cloud spending during most of this forecast period. Global Infrastructure as a Service (IaaS) and Platform as a Service (PaaS) support will grow faster than SaaS, with a compound annual growth rate of 27% and 30.6% over a five-year period.
Gartner also predicts that application software sales will grow by 7.5% this year and will exceed $200 billion by 2019, thanks in large part to the widespread adoption of the cloud-based SaaS model.
So, are you ready to build the next unicorn company and join the Billionaires Club? If that's the case, focus on a few important issues you need to master before you turn your existing software or new ideas into SaaS.
Three important factors for building a secure, scalable, and profitable application for the cloud The SaaS architecture is different from the traditional software architecture. Whether you want to convert traditional software into SaaS or develop SaaS products from scratch, you should pay close attention to several important elements of this architecture, such as security, performance, scalability, and availability.
Security is a critical factor: security is the most important factor in SaaS, and every CIO will pay close attention to it. Almost all of our customers will ask if our software is safe and their data will be stored securely.
Many customers are becoming more cautious about using SaaS applications as many companies are affected by hackers stealing valuable company and customer information. If your online service ends up being a topic of negative news coverage, the number of active users using the service is likely to decrease, at least in the short term.
Therefore, you can take multiple security measures. For example, you need to make sure that you have SSL installed on the server. This protocol allows data to be transmitted securely. As for user authentication and authorization, there are several ways to choose from, such as two-factor authentication, IP address blocking, and MAC address blocking. You can also adopt some development practices and design patterns that allow you to secure your API.
Performance and usability, and tips on how to manage this dilemma: Technological innovation has spurred people to take advantage of many features. Users are proposing more and more standards, and only when they meet this series of standards will they think that online services are excellent.
This has proven to be a challenge for many companies competing to offer high-quality Web-based SaaS. If you have used the SaaS service yourself, you may find that something is faulty, slow, and too complicated to use. Users don't like it. Therefore, if you want to make sure your online software solution is still the user's choice, make sure that its performance matches their preferences.
In traditional software, only one user logs into the system at a time, and the performance of the application depends entirely on the resources of the user's computer. Switching to a SaaS application is a different situation because the processing load is transferred to the server side and the user's computer acts as a dumb client.
In addition, there will be multiple users connecting from different parts of the world at the same time. This puts a heavy burden on the server resources, so you have to make sure your server can handle this burden. One way to do this is to load balance the services. You can add multiple server nodes that are connected to a single load balancing system. In this way, the load can be distributed to multiple servers.
You can load balance servers with different design schemes, such as polling and multicast/broadcast. You also need to focus on the failover strategy. For example, you should be prepared to answer the following questions: What happens if the load balancing system fails? Should load balancing be implemented on the load balancing system? If an application node fails, what effect does the user have? What happens if the primary database node fails? What points should you include in your disaster recovery plan?
Data backup and recovery: Your disaster recovery solution must focus on data backup and recovery.
This aspect is also related to some legal issues. It may be necessary to ensure that appropriate measures have been taken to ensure data security, depending on the industry sector in which you are engaged. For example, if you have a medical SaaS application, your data backup and recovery solution will be very different from the Enterprise Resource Planning (ERP) SaaS application. In addition, you need to make sure you have multiple recovery strategies in place. In the unlikely event that a policy fails, there is always another strategy available.
As for data backup, in addition to backing up your documents, you also need to make sure to back up the database. In the case of database backups, you can set the primary database to automatically replicate to a read-only slave database server. In the event of a failure, this allows you to replace the primary database server with this secondary server.
As for document storage, you need to copy the stored documents from the server to the external storage backup system to prevent loss of the main storage content. One way to do this is to use AWS, Google Cloud Storage, or some other storage provider's storage services. You can set up remote synchronization (rsync) for the storage folder, which will automatically copy the document to this secondary storage system.
Piezoelectric ceramic are a ferroelectric compound. This means, that the electro-mechanical conversion process for producing a motion is related a kind of self-enhancement process based on an internal reorganization of the material's structure. This self-enhancement process results in the higher piezoelectrical efficiency of PZT when compared to natural materials like quartz.
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