---
title: "Ask Acena: The Four-Part Test’s Methods, Processes, and Techniques"
description: Learn how to distinguish among methods, processes, and techniques when documenting R&D projects passing the IRS’ four-part test. This post breaks down the Permitted Purpose and Technical Uncertainty subtests with real-world examples.
---

[Acena Blog - Industry Insight From Our Tax Experts ](https://www.acenaconsulting.com/blog)

# [Ask Acena: The Four-Part Test’s Methods, Processes, and Techniques](https://www.acenaconsulting.com/blog/askacena-process)

 Written by [Laura Whittenburg, MSBME, Sr. Technical Writer](https://www.acenaconsulting.com/blog/author/laura) | Jan 27, 2025 3:01:59 PM

We finished our series on the [four-part test](https://www.acenaconsulting.com/blog/four-part-test) that the Internal Revenue Service (IRS) uses to qualify research & development (R&D) activities for the federal R&D tax credit, formally called the [Credit for Increasing Research Activities](https://www.irs.gov/forms-pubs/about-form-6765).

Businesses can claim this credit by documenting qualified R&D activities, capturing [qualified research expenses](https://www.law.cornell.edu/uscode/text/26/41#b_1) (QREs) – including wages for qualified services and supply costs – and reporting the calculated credit amount via [Form 6765](https://www.irs.gov/businesses/research-credit) when filing annual tax returns.

We recently received a question from our readership, “How can I tell the difference between methods, processes, and techniques as I document my R&D projects?” 

Let’s answer this question while reviewing the four-part test. We can immediately mitigate some complexity by considering each subtest individually. 

##### **Permitted Purpose**

The [**Permitted Purpose**](https://www.acenaconsulting.com/blog/permitted-purpose) subtest asks, “What is the intended outcome of R&D activities?” 

To qualify, R&D activities must innovate or improve a **business component** held for sale, lease, or license to taxpayers, or intended for taxpayers’ use during business or trade.

26 U.S. Code (USC) § 41(d)(2) [lists](https://www.law.cornell.edu/definitions/uscode.php?width=840&height=800&iframe=true&def_id=26-USC-21319837-1530790099&term_occur=999&term_src=title:26:subtitle:A:chapter:1:subchapter:A:part:IV:subpart:D:section:41) the qualified types of business components. Among the possibilities are both **processes **and **techniques**. But what is the difference between them?

The answer is subjective – formally undefined among the tax codes and regulations – but here are the criteria we use in house.

- Processes are ordered actions or steps to achieve an outcome. In other words, processes structure the overall strategy or workflow.
  
    - Example**:** A manufacturing company creates a new process for product assembly product that calls for a custom order of operations or steps, facilitated by robotic arms.
- Techniques are specific methods or procedures to achieve an outcome.
  
    - Example: During the aforementioned manufacturing process, a new technique is developed to weld two components using a laser instead of traditional welding methods.

In summary, processes are broader in scope than techniques. A single process can encompass multiple techniques. Processes focus on the overall flow and sequence of activities, while techniques focus on the specific actions and methods used during one step.

*But what about the difference between methods and techniques?* This question can be confidently disregarded because both methods and techniques are not options for business components.

##### **Technical Uncertainty**

The four-part test mandates that qualified R&D seeks to eliminate [**Technical Uncertainty**](https://www.acenaconsulting.com/blog/technical-uncertainty). 

Technical Uncertainty exists if the available information to the taxpayer (e.g., your business) does not address specific unknowns, including the **appropriate design** or **method **for creating or improving the business component.

Let’s explore how these uncertainties may apply to the same theoretical project. A civil-engineering consultancy is tasked with restoring a coastal wetland, affected by an oil spill.

- Appropriate design refers to a process' blueprint. 
  
    - Example: The R&D team does not know what methodical permutation (i.e., set of ordered steps) would most effectively rehabilitate the biodiversity and the ecosystem's functionality.
- Method refers to the means of completing a process.
  
    - Example: The R&D team does not know how to most effectively perform a step (e.g., controlled burning, invasive species removal, or reforestation) called for by the elected restoration design.

Do you still have lingering questions? *Solicit a second opinion!*

At Acena Consulting, R&D tax credits are our bread-and-butter business, 365 days a year. Our team of tax professionals includes CPAs who have partnered with startups and Fortune 500 companies, as well as engineers who understand the scientific questions underlying your operations. 

[Schedule a free consultation today](https://meetings.hubspot.com/randy-eickhoff?uuid=41df5cd2-5d98-43bc-8e39-d9e0fe9f8c79&__hstc=135015022.d652028c05328375e4453175812cef77.1726500807997.1735319588192.1735324257232.123&__hssc=135015022.6.1735324257232&__hsfp=3011104808) to receive immediate assistance from [Randy Eickhoff, CPA](https://www.linkedin.com/in/randyeickhoffcpa/), Acena's Founder & Head Coach.

##### **Stay Informed**

Interested in building your professional fluency in R&D tax incentives?

- [Sign up for our free, interactive webinar](https://www.acenaconsulting.com/cracking-the-tax-code-for-rd-interactive-workshop) on **February 18**: “Cracking the (Tax) Code for R&D.” 
    - This workshop provides **one CPE credit** for professionals keeping up with continuing education.
- Subscribe to our newsletter to send industry insights from our experts directly to your inbox.

//

Edited by [Randy Eickhoff, CPA](https://www.linkedin.com/in/randyeickhoffcpa), Founder & Head Coach at Acena Consulting. Photo courtesy of ESO/M. Kornmesser (i.e., European Southern Observatory) on Flickr.

[View full post](https://www.acenaconsulting.com/blog/askacena-process)

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