The phrase "a valid starting point in" is correct and usable in written English.
You can use it when discussing an initial idea, concept, or method that serves as a foundation for further exploration or development.
Example: "The research findings provide a valid starting point in understanding the effects of climate change on local ecosystems."
Alternatives: "a reasonable foundation for" or "a sound basis for".
Therefore, the proposed scenario is usually considered for investigating the impact of different dynamic spectrum allocation policies for interference avoidance in femtocell environments, and the proposed analysis represents a valid starting point for studies in this direction.
We hypothesized that the 270 ms measured in our previous work represented a valid starting point for estimating the pore duration in this study.
The underpinning assumption is that the morphological relationships of Merkel cell-neurite associations and hemi-nodes in individual touch domes form a valid starting point for mathematical modeling of the firing properties recorded from SAI afferent fibers.
The approaches used in the study can serve as a valid starting point for further development of such tools and methods compatible with planners' ordinary working modes.
Examining and acknowledging the importance of studying smoking and its health sequelae in a sex- and gender-differentiated manner is a valid starting point, but is clearly not enough.
As has been shown, ribosomal genes are a valid starting point to determine reference frequencies [ 30, 49].
Hegel's claim that there is more philosophy in science than scientists are usually aware of, or willing to acknowledge (1830/1970, p. 11), remains a valid starting point.
Indeed, a shared sense of reality is the only valid starting point for reducing our tribal instincts.
At one hand, mutational fuzzers require a set of valid inputs as a starting point, in which modifications are then introduced.
Still, the version given at the moment of our conversation, and as given in a consultation, was valid as a subjective starting point for change.
