LII:LIMSpec/Putting LIMSpec to use

Putting those requirements to practical use

The LIMSpec covered laboratory informatics requirements organized into five broad categories, which are heavily influenced by the functional requirements checklist and Figure 3 of ASTM E1578-18 Standard Guide for Laboratory Informatics. However, the requirements listed prior are all based on not just the ASTM E1578 standard but also a wide variety of other standards, regulations, guidance documents, and standardized procedures (hereon referred to as "sources"). That ultimately means a foundational reasoning is provided for each requirement, not necessarily a "just because I want it" reasoning. As foundational requirements, this LIMSpec should thus operate as an excellent starting point for building your own software requirements specification or for researching the best laboratory informatics solution for your laboratory.

Software developer considerations

What does that mean for you? How can you best use this document? If you're a software developer for the laboratory industry, many of the sources referenced in these requirements should already be familiar to you. However, some of them may not be, and you'll probably want to at least familiarize yourself with them. Additionally, if you're developing a generic laboratory information management system (LIMS) or some other informatics solution, not tailored to a particular industry, most everything in chapters two, three, five, and six should largely be applicable to what you're doing with your commercial off-the-shelf (COTS) software solution. Definitely review the requirements items listed there and make sure the most important ones are part of your own software requirements specification. If the software solution you're developing is tailored to a particular industry (e.g., clinical or public health, pharmaceutical development, or heavy metals testing), you'll also want to examine chapter four. If you don't see many requirements for your industry listed (see the "Caveats" section later), you'll probably have additional research to conduct to see what additional sources will affect how you develop the functional and, particularly, non-functional requirements.

Buyer considerations

If you're a potential buyer of a laboratory informatics solution, this LIMSpec is also useful to you. Perhaps you know a bit about your laboratory's workflow and a few of the regulations and standards that influence how that workflow is conducted, but you're not entirely informed. Reviewing the five broad categories of requirements may be necessary to help further inform you regarding what's vital in regards to what a laboratory informatics solution should be capable of. Additionally, you can then use these requirements as a base for your laboratory's own requirements list. Using the categories and their subdivisions, you can then add those requirements that are unique to your laboratory and industry that are not sufficiently covered by the LIMSpec requirements. As you review the various options available to you and narrow down your search, your own list of requirements can be used as both as a personal checklist and as a requirements list you hand over to the vendor you query.

Software vendor selection

That said, the requirements you hand off to the vendor should be discussed a bit more. Software vendor selection can at times be a tedious yet necessary process, one which requires careful planning and best practices. This topic has been written about by both software developers and end users alike, and their experiences should play a role in how you select a vendor. What follows is bullet-pointed advice as offered by some of those developers and end users.

• Have a clear business case and build your business needs into your laboratory's requirements.
• Be mindful of how detailed you get with your own business-based requirements and what you initially hand off to a vendor. If you're too specific with too many requirements, you may have trouble finding a vendor that matches up. Start with the essentials that involve your laboratory's processes, regulations, integrations, reporting, service needs, etc. As this LIMSpec is foundation-based, you have a good starting point in that regard. You can always get more detailed with requirements as you narrow down vendors.
• As discussed briefly in the introduction, you'll need to prioritize your needs somewhere between "critical" and "nice to have." The LIMSpec's requirements are largely critical for most purposes and can be marked as such. The requirements you add will have to be prioritized more carefully.
• You'll also want to perform some informal third-party information gathering about the vendors. Are reviews of the vendors trustworthy? Have peers had any interactions and success with the vendor? Does the vendor have the ability to scale to meet your needs?
• Schedule demonstrations of programs that seem like strong initial candidates. Make sure there is a question and answer session afterwards, and perform a post-demo evaluation.
• A formal request for proposal (RFP) may or may not be necessary, depending on the level of information you acquire prior. However, formally requesting pricing and clarification of maintenance and additional service costs is useful. Just don't let price be the only thing that guides you.
• Consider some of the intangibles. Does the vendor genuinely seem interested in your business and its needs? Do they communicate well and promptly? Do they seem flexible and able to accommodate a few special case requirements?
• Be sure to consider future needs as you anticipate potential laboratory expansion.
• Don't be afraid to choose a consultant to help you with the vendor selection process.

Caveats

First, note that this LIMSpec is still an evolving entity. Standards change. Regulations change. Procedures also change with such standards and regulations. That means that as those foundational characteristics shift, this set of requirements will have to also evolve. As such, do your homework and don't take everything you see here as fixed law. If you're responsible for investigating and/or purchasing a laboratory informatics system, be sure you have at least some familiarity with the primary industry your laboratory serves, and by extension the regulations and standards that affect it.

Second, the number of industry-specific applications of laboratory informatics software continues to grow, and with it also the regulations and standards that affect those specialty laboratories. As such, some industry-specific requirements may have been missed for lack of or too expensive public-facing sources. As mentioned with the first caveat, this version of LIMSpec is evolving, and as industry experts and researchers are able to provide additional feedback on this document, it will surely grow with more relevant sources. In other words, don't consider this complete, particularly if you're in a specialized laboratory industry. You may have to add more items based on you industry knowledge and insights.

LIMSpec in Microsoft Word format

Microsoft Excel is often used as a tool to document requirements specifications. However, one downside to Microsoft Excel is its inability to handle multiple hyperlinks in the same cell. If you've looked over the LIMSpec, you've likely noticed there are multiple hyperlinks to regulations, specifications, and guidance documents in the first column of the tables. Translating these wiki-based documents to Excel makes for a challenge when trying to maintain those hyperlinks. As they add value to not only your laboratory's requirements research but also to vendors' understanding of the sources for your requirements, it was decided the hyperlinks should be maintained in any portable version. As such, a Microsoft Word version was created.

You can download a copy of the Microsoft Word version of LIMSpec from LIMSwiki by going to File:LIMSpec 2022R2 v1.0.docx, right-clicking the URL under the white box, and selecting "Save link as..." (Alternatively, you can just click the link, open the file, and then save it.) A compromise was made between keeping the hyperlinks in the first column readable and leaving enough room in the third column for a vendor to provide a response. This response space admittedly may be a limiting factor for vendors wanting to include screenshots. If this situation arises, you may encourage the vendor to select the entire first column and delete it, then widening the response column.

Note that this downloadable version of LIMSpec is released under the same licensing terms as this guide. Please see the first paragraph of the download for more details.